Adolph fischee



(No Model.)

A. FISCHER.

TAP HOLE BUSH.

WITNBSSES:

UNITED STATES PATENT OEECE.

ADOLPH FISCHER, OF RAVENSVOOD, NEV YORK.

TAP-HOLE BUSH.

SPECIFICATION forming part of Letters Patent No. 320,862, dated June 23, 1885.

Application filed April 23, 1885. (No model.)

To aZ whom it may concern:

Be it known that I, ADoLPH FISCHER, a citizen of the United States, residing at Ravenswood, in the county of Queens and State of New York, have invented new and useful Improvements in Taps and Tap-Hole Bushes, of which the following is a specification.

This invention relates to taps and tap-hole bushes; and it consists in the novel construction and combination of devices hereinafter described and claimed, reference being made to the accompanying drawings, illustrating my invention, in which- Figure 1 represents a longitudinal section. Fig. 2 is a transverse section in the plane x x, Fig. l. Fig. 3 is a side view of my tap-hole bush, showing its sections detached.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the inner section of my tap-hole bush, and B is its outer section. This outer section consists of a tubular shank, b, which is provided with an internal screw-thread, and with a flange, b', at one of its ends. The outside diameter of the shank I) is somewhat less than the diameter of the tap-hole, so that said shank can be readily passed into the tap-hole. The flange b is provided with holes for the reception of a screw-wrench, and the barrel-head is provided with a recess to receive the flange b, so that when the tap-hole bush is in position the surface ofthe barrel-head remains smooth, which is a great advantage in cleaning, transporting, and otherwise manipulating the barrel, and which is necessary on account of the revenuestamp which has to be placed over the tap-hole.

The section A of my tap-hole bush consists of a tubular shank, a, which is provided with an external screw-thread, and with a iange, a, at one of its ends. lhe internal screwthread of the shank b of the section B and the iiange c are provided with holes for the reception of a suitable wrench.

In the barrel-head is a recess for the reception of the flange c', and if the two sections A B are introduced into the tap-hole in opposite directions and screwed up tight, both the inner and the outer surfaces of the barrel-head remain (smooth.

The inner section, A, of my tap-hole bush is provided with an internal screw-thread to receive the stem c of the valve C, said stem being hollow and provided with an external screw-thread to fit the thread in the section A.

In the valve-stem c is formed a spiral slot, d, and when the valve is screwed into the position shown in Fig. l the liquid contained in the barrel ows ont through this spiral slot. The pitch of this spiral slot is different from that of the screw-thread, so that by the operation of opening and closing the valve the slot is kept clean.

I am aware that' valves similar to mine have been combined with tap-hole bushes; but such valves are provided with round holes in their tubular stems, and these holes -are 'pliable to clog up after a short time.

The spiral slot in my valve-stem is self-cleaning and not liable to clog up, and since the valve cannot easily be taken out after the tap-hole bush has been'secured in position a great advantage is gained by the spiral slot.

The tap or faucet D is provided with a screw-thread to engage with the internal screwthread in the section B of the tap-hole bush, and in the inner end of the shank of said top is formed a square socket, d, Fig. 2, to engage with a square, e, formed at the inner end of the valve-stem c.

On the valve-stem is formed astop, f,which prevents the valve from being screwed in beyond the desired limit. This stop cooperates with a shoulder, k, formed by the inner end of the section A of the tap-hole bush.

On the shank of the tap D is fitted a handwheel, E, the hub of which forms a nut, g. On the inner face of this nut is placed a packing-disk, 71., and when said nut is screwed up against the flange b of the tap-hole bush a tight joint is formed, and leakage at the outer end of the tap-hole bush is prevented.

What I claim as new, and desire to secure by Letters Patent, is*

l. A tap-hole bush consisting of the following elements, to Wit: the internally screwthreaded shank b, having the lateral flange b at its outer end, the externally and internally screw-threaded shank a, provided with the lateral ange a at one end and ha vingits other IOO end terminating` adjacent t0 the center of the shank b, to constitute a stationary annular stop, K, and a screwthreaded Va1ve-ste1n, c, tting the shank a, and provided at one end with a 5 valve, C, and at its other end with au attached laterally-projecting stop to abut the shoulder formed by the end ofthe shank a, substantially as and for the purposes described.

2. The combination, with the tap-hole bush 1o and with the internal screw-thread formed therein, of the valve C, having a screw-thread formed on its tubular stem to engage with the internal screw-thread of the tap-hole bush, and the spiral slot d, formed in the valve-stern, substantially as shown and described.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing Witnesses.

ADOLPH FISCHER. [L s] VitneSSeS:

' XV. HAUFF,

E. F. KASTENHUBER. 

